#!/usr/bin/python
# -*- coding: utf-8 -*-
from tkinter import Tk, Frame, BOTH
class Example(Frame):
   def __init__(self, parent):
       Frame.__init__(self, parent, background="white")   
       self.parent = parent
       self.initUI()
   
   def initUI(self):
       self.parent.title("Simple")
       self.pack(fill=BOTH, expand=1)
       
def main():
   root = Tk()
   root.geometry("250x150+300+300")
   app = Example(root)
   root.mainloop()  
if __name__ == '__main__':
   main()
